The utility model discloses a water circulation heating type honeycomb structure lithium iron phosphate battery component. The battery component comprises two parts, namely a high voltage system of a lithium iron phosphate battery and a temperature control system, wherein the high voltage system of the lithium iron phosphate battery comprises a plurality of battery packs, conducting wires, a power supply controller, a battery box body and a fixing clamping plate; the temperature control system comprises a circulation water pipeline, a water tank, a water pump, a heating pipe, a temperature sensor and a temperature control circuit; the battery component is characterized in that each battery pack is constituted by an electric cell matrix arranged by a plurality of battery cells which are connected in parallel and series, conductive metal plates are used for connection before and after each electric cell matrix to constitute a high-voltage loop, a reserved vacant space is arranged in each electric cell matrix, the circulation water pipeline is distributed and interposed in the vacant space; the circulation water pipeline is connected with the water tank to constitute a closed space. According to the battery component disclosed by the utility model, the ambient temperature of the battery packs is measured by the temperature sensor, the power of the water pump and the heating pipe is controlled according to the ambient temperature, and the battery component has the advantages of simple structure, high utilization rate of the spaces in the battery packs, high structural strength and the like.